clean-up: Remove the no more necessary ENV_HAS_DATA_SECTION flag

With commit b7832de026 ("x86: Add .data
section support for pre-memory stages"), the `ENV_HAS_DATA_SECTION'
flag and its derivatives can now be removed from the code.

Change-Id: Ic0afac76264a9bd4a9c93ca35c90bd84e9b747a2
Signed-off-by: Jeremy Compostella <jeremy.compostella@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/77291
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Maximilian Brune <maximilian.brune@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/ec/acpi/ec.c

@@ -147,9 +147,6 @@ void ec_clr_bit(u8 addr, u8 bit)
 
 void ec_set_ports(u16 cmd_reg, u16 data_reg)
 {
-	if (!ENV_HAS_DATA_SECTION)
-		return;
-
 	ec_cmd_reg = cmd_reg;
 	ec_data_reg = data_reg;
 }

src/ec/google/chromeec/ec_boardid.c

@@ -5,7 +5,7 @@
 
 uint32_t board_id(void)
 {
-	MAYBE_STATIC_NONZERO uint32_t id = BOARD_ID_INIT;
+	static uint32_t id = BOARD_ID_INIT;
 
 	if (id == BOARD_ID_INIT) {
 		if (google_chromeec_get_board_version(&id))

src/ec/google/chromeec/ec_skuid.c

@@ -5,7 +5,7 @@
 
 uint32_t google_chromeec_get_board_sku(void)
 {
-	MAYBE_STATIC_NONZERO uint32_t sku_id = CROS_SKU_UNKNOWN;
+	static uint32_t sku_id = CROS_SKU_UNKNOWN;
 
 	if (sku_id != CROS_SKU_UNKNOWN)
 		return sku_id;

src/ec/google/wilco/boardid.c

@@ -5,7 +5,7 @@
 
 uint32_t board_id(void)
 {
-	MAYBE_STATIC_NONZERO uint32_t id = BOARD_ID_INIT;
+	static uint32_t id = BOARD_ID_INIT;
 
 	if (id == BOARD_ID_INIT) {
 		uint8_t ec_id;

src/ec/intel/board_id.c

@@ -19,7 +19,7 @@ static uint32_t get_board_id_via_ext_ec(void)
 /* Get Board ID via EC I/O port write/read */
 int get_rvp_board_id(void)
 {
-	MAYBE_STATIC_NONZERO int id = BOARD_ID_UNKNOWN;
+	static int id = BOARD_ID_UNKNOWN;
 
 	if (CONFIG(EC_GOOGLE_CHROMEEC)) { /* CHROME_EC */
 		id = get_board_id_via_ext_ec();

src/include/rules.h

@@ -278,9 +278,6 @@
 #define ENV_CACHE_AS_RAM		0
 #endif
 
-/* Indicates .data section support. */
-#define ENV_HAS_DATA_SECTION		1
-
 /* Indicates if the stage uses the _data and _bss regions defined in
  * arch/x86/car.ld */
 #define ENV_SEPARATE_DATA_AND_BSS	(ENV_CACHE_AS_RAM && (ENV_BOOTBLOCK || !CONFIG(NO_XIP_EARLY_STAGES)))

src/include/stddef.h

@@ -34,12 +34,6 @@ typedef __WINT_TYPE__ wint_t;
 #define DEVTREE_CONST
 #endif
 
-#if ENV_HAS_DATA_SECTION
-#define MAYBE_STATIC_NONZERO static
-#else
-#define MAYBE_STATIC_NONZERO
-#endif
-
 /* Provide a pointer to address 0 that thwarts any "accessing this is
  * undefined behaviour and do whatever" trickery in compilers.
  * Use when you _really_ need to read32(zeroptr) (ie. read address 0).

src/lib/cbfs.c

@@ -20,12 +20,8 @@
 #include <thread.h>
 #include <timestamp.h>
 
-#if ENV_HAS_DATA_SECTION
 struct mem_pool cbfs_cache =
 	MEM_POOL_INIT(_cbfs_cache, REGION_SIZE(cbfs_cache), CONFIG_CBFS_CACHE_ALIGN);
-#else
-struct mem_pool cbfs_cache = MEM_POOL_INIT(NULL, 0, 0);
-#endif
 
 static void switch_to_postram_cache(int unused)
 {

src/mainboard/intel/adlrvp/board_id.c

@@ -19,7 +19,7 @@ static uint32_t get_board_id_via_ext_ec(void)
 /* Get Board ID via EC I/O port write/read */
 int get_board_id(void)
 {
-	MAYBE_STATIC_NONZERO int id = -1;
+	static int id = -1;
 
 	if (id < 0) {
 		if (CONFIG(EC_GOOGLE_CHROMEEC)) {

src/mainboard/intel/glkrvp/boardid.c

@@ -12,7 +12,7 @@
 
 uint32_t board_id(void)
 {
-	MAYBE_STATIC_NONZERO int id = -1;
+	static int id = -1;
 	if (id < 0) {
 		if (CONFIG(EC_GOOGLE_CHROMEEC))
 			id = variant_board_id();

src/mainboard/intel/glkrvp/variants/baseboard/boardid.c

@@ -6,7 +6,7 @@
 
 int variant_board_id(void)
 {
-	MAYBE_STATIC_NONZERO uint32_t id = BOARD_ID_INIT;
+	static uint32_t id = BOARD_ID_INIT;
 
 	if (CONFIG(EC_GOOGLE_CHROMEEC)) {
 		if (id == BOARD_ID_INIT) {

src/mainboard/intel/jasperlake_rvp/board_id.c

@@ -23,7 +23,7 @@ static uint32_t get_board_id_via_ext_ec(void)
  */
 int get_board_id(void)
 {
-	MAYBE_STATIC_NONZERO int id = -1;
+	static int id = -1;
 
 	if (id < 0) {
 		if (CONFIG(EC_GOOGLE_CHROMEEC)) {

src/mainboard/intel/kblrvp/board_id.c

@@ -9,7 +9,7 @@
  */
 int get_ec_boardinfo(void)
 {
-	MAYBE_STATIC_NONZERO int ec_info = -1;
+	static int ec_info = -1;
 	if (ec_info < 0) {
 		uint8_t buffer[2];
 		uint8_t index;

src/mainboard/intel/tglrvp/board_id.c

@@ -20,7 +20,7 @@ static uint32_t get_board_id_via_ext_ec(void)
 /* Get Board ID via EC I/O port write/read */
 int get_board_id(void)
 {
-	MAYBE_STATIC_NONZERO int id = -1;
+	static int id = -1;
 
 	if (id < 0) {
 		if (CONFIG(EC_GOOGLE_CHROMEEC)) {